Whiye discharges are normal if they occur before menses, after menses or around ovulation.
When Vulval itching, burning while passing urine and tummy ache accompany white discharge it needs to be treated.
Your parovarian cyst is not essential for body. Its a vestigeal remnants of body.
Stitches do pain occasionally. Thats ok.
Next Steps
visit a nearby gynecologist and get evaluated.